70872340 has 48 divisors (see below), whose sum is σ = 185560704. Its totient is φ = 22089600.

The previous prime is 70872331. The next prime is 70872367. The reversal of 70872340 is 4327807.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21471 + ... + 24550.

It is an arithmetic number, because the mean of its divisors is an integer number (3865848).

Almost surely, 2^70872340 is an apocalyptic number.

70872340 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

70872340 is an abundant number, since it is smaller than the sum of its proper divisors (114688364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70872340 is a wasteful number, since it uses less digits than its factorization.

70872340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46048 (or 46046 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 70872340 is about 8418.5711376694. The cubic root of 70872340 is about 413.8334491520.

The spelling of 70872340 in words is "seventy million, eight hundred seventy-two thousand, three hundred forty".